Skip to content

WAEC WASSCE 2018

WAEC Physics 2018 past questions

6 objective questions from the 2018 WAEC Physics paper. Answer each one, then reveal the answer and explanation.

All WAEC Physics past questions

  1. Question 1

    Pressure

    A force of 1400 N acts on an area of 3 m². Find the pressure exerted.

    1. Option A: 4,200 Pa
    2. Option B: 233.33 Pa
    3. Option C: 933.33 Pa
    4. Option D: 466.67 Pa
    Show the answer to question 1

    Answer: D, 466.67 Pa

    Pressure = force ÷ area = 1400 ÷ 3 = 466.67 Pa.

  2. Question 2

    Heat

    How much heat is needed to raise the temperature of 0.8 kg of water by 20 °C? (Specific heat capacity of water = 4200 J/kg K.)

    1. Option A: 33,600 J
    2. Option B: 3,360 J
    3. Option C: 84,000 J
    4. Option D: 67,200 J
    Show the answer to question 2

    Answer: D, 67,200 J

    Q = mcΔθ = 0.8 × 4200 × 20 = 67,200 J.

  3. Question 3

    Current electricity

    A potential difference of 101.5 V is applied across a 29 Ω resistor. Find the current that flows.

    1. Option A: 2943.5 A
    2. Option B: 3.5 A
    3. Option C: 0.29 A
    4. Option D: 7 A
    Show the answer to question 3

    Answer: B, 3.5 A

    By Ohm's law, I = V ÷ R = 101.5 ÷ 29 = 3.5 A.

  4. Question 4

    Work and energy

    Calculate the kinetic energy of a 11 kg body moving at 6 m/s.

    1. Option A: 198 J
    2. Option B: 396 J
    3. Option C: 33 J
    4. Option D: 66 J
    Show the answer to question 4

    Answer: A, 198 J

    KE = ½mv² = ½ × 11 × 6² = 198 J.

  5. Question 5

    Units and measurement

    What is the SI unit of thermodynamic temperature?

    1. Option A: Degree Celsius
    2. Option B: Kelvin
    3. Option C: Joule
    4. Option D: Calorie
    Show the answer to question 5

    Answer: B, Kelvin

    Thermodynamic temperature is measured in kelvins (K).

  6. Question 6

    Motion

    A car moving at 15 m/s accelerates uniformly at 3 m/s² for 3 s. Find its final velocity.

    1. Option A: 12 m/s
    2. Option B: 18 m/s
    3. Option C: 48 m/s
    4. Option D: 24 m/s
    Show the answer to question 6

    Answer: D, 24 m/s

    Use v = u + at = 15 + 3 × 3 = 24 m/s.

Practise WAEC Physics on SchoolEasy CBT

In SchoolEasy, students answer timed questions on screen, see an explanation for every answer, and track their progress topic by topic. Teachers turn past questions into class tests that mark themselves.

Practise in the appRequest a demo for your school

School management made effortless.

We strive to build the best school management software for schools from all over the world.

Available soon on all digital platforms

Download on theApp StoreGet it onGoogle Play